Leaf STEM Activities

Young Learners Science Club

Leaf STEM Activities have always been a favorite around here once the air starts to cool and the leaves begin to pile up. There’s just something about the mix of science and seasons that makes it so easy to grab a few leaves and turn them into a learning moment.

If you’re working your way through fall themes, don’t miss my list of Fun Fall Activities for Kids. It’s a growing collection of projects, printables, and experiments that have helped us stretch the season into meaningful, hands-on learning.

I’ve pulled together the best STEM ideas that actually work across a wide range of ages.

Whether you’re trying to bring science into your lessons this fall or you just need something fresh that doesn’t require a ton of prep, there’s something in here for you. Keep reading to find ideas for preschoolers up to teens, plus book suggestions, supplies, and printable packs to round everything out.

collage of Leaf STEM Activities

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Why do kids need to learn about leaves?

Leaves aren’t just pretty, they’re packed with science, too. Exploring them helps kids connect to the natural world and start asking questions about how things work.

  • Builds nature awareness: Looking closely at leaves helps kids slow down and observe what’s going on around them.
  • Introduces plant biology: From photosynthesis to seasonal change, there’s a lot packed into that green surface.
  • Encourages curiosity: Noticing color, shape, or texture differences often leads to asking “why,” which leads to real learning.
  • Strengthens observation skills: Matching, sorting, and comparing leaves build critical thinking from an early age.
  • Connects science to everyday life: Leaves are easy to find, making science more accessible without needing fancy equipment.

Before you jump into the activities, I always recommend starting with a read-aloud or two. A good picture book sets the tone and builds interest in what’s coming.

Why Do Leaves Change Color? (Let's-Read-and-Find-Out Science 2)Why Do Leaves Change Color? (Let’s-Read-and-Find-Out Science 2)Leaves (Learn About: Fall)Leaves (Learn About: Fall)The Very Last LeafThe Very Last LeafFletcher and the Falling Leaves: A Fall Book for KidsFletcher and the Falling Leaves: A Fall Book for KidsThere Was an Old Lady Who Swallowed Some Leaves!There Was an Old Lady Who Swallowed Some Leaves!We're Going on a Leaf HuntWe’re Going on a Leaf Hunt

 

What do kids learn from these leaf activities?

These activities aren’t just fun-they teach meaningful concepts across science and even a bit of math.

  • Basic plant science: Kids learn about the parts of a leaf, how water moves, and what causes them to change color.
  • Observation and analysis: Noticing differences and testing hypotheses naturally come up.
  • Art and creativity: Some of these projects bring in color, design, and personal flair.
  • Hands-on problem solving: Many of the activities are experiments, asking kids to try, notice, and adjust.

When my youngest daughter was younger, I always had a few themed worksheets on hand during the fall. These printable packs are no-prep and perfect for quiet work while you’re prepping lunch or working with another child.

collage of Leaf STEM Activities

Leaf Science Activities Supplies You’ll Need

Here’s a quick list of common materials you’ll want to have nearby before starting:

  • Fresh or dried leaves (variety is helpful)
  • Coffee filters or paper towels
  • Food coloring
  • Markers or crayons
  • Scissors
  • String or yarn
  • Glue
  • Baking soda and vinegar
  • Chalk pastels
  • Salt and containers for crystal experiments

Recommended Leaf Toys

There are a few leaf-themed toys and puzzles that can make seasonal learning a little more interactive. I keep these out in a basket for when we need a quiet activity that still connects to what we’re learning.

Kisangel Montessori Leaf Puzzle Set, 4Pcs Wooden Tree Identification Toys with Knobs for Toddler Cognitive Learning, Nature Exploration, and Preschool Educational Activities, Assorted Colors, 3.74 X 3Kisangel Montessori Leaf Puzzle Set, 4Pcs Wooden Tree Identification Toys with Knobs for Toddler Cognitive Learning, Nature Exploration, and Preschool Educational Activities, Assorted Colors, 3.74 X 3Leaf Wooden Jigsaw Puzzles by MoinKidz, Leaf Puzzle Fall Toys for Toddler, Montessori Puzzles for Kids Ages 3-5, STEM Educational Learning Toys Birthday Gift for Boys and GirlsLeaf Wooden Jigsaw Puzzles by MoinKidz, Leaf Puzzle Fall Toys for Toddler, Montessori Puzzles for Kids Ages 3-5, STEM Educational Learning Toys Birthday Gift for Boys and GirlsOarencol Autumn Maple Leaves Fall Landscape Jigsaw Puzzle 500 Pieces Puzzles for Adults KidsOarencol Autumn Maple Leaves Fall Landscape Jigsaw Puzzle 500 Pieces Puzzles for Adults Kidshand2mind Sensory Leaves Math Activity Set, Pattern Play, Shape Puzzle, Pattern Blocks Cards, Math Counters, Sorting Toy, Shapes for Toddlers, Counting Toy, Kindergarten Learning Activitieshand2mind Sensory Leaves Math Activity Set, Pattern Play, Shape Puzzle, Pattern Blocks Cards, Math Counters, Sorting Toy, Shapes for Toddlers, Counting Toy, Kindergarten Learning ActivitiesMatch a Leaf: A Tree Memory GameMatch a Leaf: A Tree Memory GameLeaf Board Game by Weird City Games, Strategy Board GameLeaf Board Game by Weird City Games, Strategy Board Game

 

How to Extend the Lesson

Leaf activities don’t have to be a one-off. You can stretch the learning across multiple days or use the leaf theme to link subjects together.

  • Try fall-themed printables: These Autumn Printable Activities make a great follow-up, especially if you want more seasonal worksheets.
  • Add a craft session: We’ve made leaf animals, collages, and garlands using the ideas from this list of Fall Crafts for Kids. They’re great for siblings working at different levels.
  • Start a nature journal: Collect and sketch leaves over time, comparing them week to week. It builds observation and writing skills without pressure.
  • Do a leaf scavenger hunt: Turn your next walk into a search game. You can set challenges based on shape, size, or number.

More Fall Activities to Try

Fall is a great time to shift your learning outside and bring in more seasonal projects.

three pages of Why Do Leaves Change Color in the Fall Worksheet
Why Do Leaves Change Color in the Fall Worksheet
A simple worksheet that explains the science of leaf color change. It worked well as a morning activity for my daughter when she was around 9.
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Exploring Colors & Chlorophyll with Kids
https://alittlepinchofperfect.com
Exploring Colors & Chlorophyll with Kids
A hands-on experiment that shows what’s hidden inside leaves. It’s a bit messy but very visual.
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https://www.theottoolbox.com
Fall Leaf Auditory Processing Activities
These are great if you want something sensory-focused. My daughter used to enjoy these kinds of challenges during our quiet afternoon time.
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Why do Leaves Change Color Experiment
https://www.123homeschool4me.com
Why do Leaves Change Color Experiment
This one goes deeper into the pigments inside leaves. It’s a solid choice for older kids who are curious about chemistry.
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DIY Leaf Crystals
https://livingwellmom.com
DIY Leaf Crystals
Salt crystals on leaves turn out beautiful, and it's an easy science-art combo. My teens thought this was surprisingly cool.
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Autumn Ice
https://www.mummymummymum.com
Autumn Ice
Freeze leaves in water and see what happens as it melts. Works well for sensory play with younger kids.
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Baking Soda Painted Leaves
https://inspirationlaboratories.com
Baking Soda Painted Leaves
This is a simple acid-base reaction that adds color and fizz. It’s a good mix of art and early chemistry.
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Jumping Leaves
https://www.science-sparks.com
Jumping Leaves
Explore static electricity with tissue paper leaves. Quick to set up and fun to watch.
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Leaf Parts Printable
https://homeschoolpreschool.net
Leaf Parts Printable
A good printable for introducing leaf anatomy to younger children. We’ve used it as a coloring sheet, too.
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https://ourfamilycode.com
Chalk Pastel Leaf Rubbings
Combines art with science exploration. The textures that show up are always a hit.
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https://tinkerlab.com
Glycerin Leaves
Preserve the softness of leaves using glycerin. A more advanced project but the results last for weeks.
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Exploring How Water Travels Through Leaves
https://buggyandbuddy.com
Exploring How Water Travels Through Leaves
A great visual experiment to show capillary action. Easy to do with a few leaves and food coloring.
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https://littlebinsforlittlehands.com
Grow Salt Crystal Leaves For Fall Science
Another crystal activity that’s easy to repeat. It works well as part of a science day.
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Number Themed Leaf Scavenger Hunt
https://theeducatorsspinonit.com
Number Themed Leaf Scavenger Hunt
Add some math to your walk. We’ve done this in our backyard and counted leaves by groups.
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https://preschoolpowolpackets.blogspot.com
Leaf Science Experiment
A simple way to test how leaves change with time. This one’s short and sweet-good for early learners.
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Fall STEM with leaves is one of those seasonal wins that can work across subjects and age groups. Choose from science-focused projects or creative leaf play. This list gives you plenty of useful options.

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